How many grounds on your car?

[4thStroke]

Quoting turbowop:
Unless you are dealing with some rusted out POS hoopty...



Um... did you forget which forum you're on? /ubbthreads/images/graemlins/hsugh.gif

 

[curtis]

Well I've fixed a bunch of different cars in my life that thought one in the trunk was good enough. One I drove round trip of 4 hours to fight all day to discover that was the problem. Its just cheap insurance and sometimes over kill isn't a bad thing.

 

[alansupra94]

Quoting turbowop:
That sounds great in theory, Curtis... but in practice, one ground works fine. Unless you are dealing with some rusted out POS hoopty, or have other issues, the unibody works great as a conductor.

I've tested the resistance between my trunk ground location and every factory firewall ground location as well as a bunch of random spots all over the engine. No resistance. ON BOTH CARS. It works fine.



Thats what I thought BUT I plan on running a few extra grounding wires to be safe. Did I mention I have a solar panel on my car? /ubbthreads/images/graemlins/rofl.gif

 

[Brunoboy]

so i will run grounds just to be super safe, where are the stock locations? and what are the best places to add extra?

 

[Brunoboy]

bump for answers.....

 

[jepherz]

Quoting curtis:
Well I've fixed a bunch of different cars in my life that thought one in the trunk was good enough. One I drove round trip of 4 hours to fight all day to discover that was the problem. Its just cheap insurance and sometimes over kill isn't a bad thing.



Yes, however, this still doesn't prove if it is a chassis continuity problem, or just a corrosion problem at the point of contact. 20 spot welds is a lot of surface area for two pieces of steel to contact.

 

[jepherz]

Quoting brunoboy:
so i will run grounds just to be super safe, where are the stock locations? and what are the best places to add extra?



You'd want to ground to thinks like the head for ignition maybe? And intake manifold? Which is where the factory grounds are. Grounding the transmission isn't going to do anything except waste wire.

 

[Brunoboy]

They all connect to chassis correct? Or do they all connect to each other , then to the chassis with one 0 gauge wire?

 

[jepherz]

To the chassis, like the factory wiring.

 

[turbowop]

The chassis is like one gigantic ground bus-bar. Every wire that terminates to the chassis is connected since the unibody is one huge hunk of steel conductor. Unless you have a chassis so rusted out that pieces are falling off as you drive down the road, and as long as you connect to an actual bare metal part of the unibody and not some separate part attached to it, you should have continuity with all other grounds including the battery negative.

 

[Rausch]

Quoting jepherz:
Quoting brunoboy:
so i will run grounds just to be super safe, where are the stock locations? and what are the best places to add extra?



You'd want to ground to thinks like the head for ignition maybe? And intake manifold? Which is where the factory grounds are. Grounding the transmission isn't going to do anything except waste wire.



Isn't there a huge ground point there anyways?